They advise and represent people who are being faced with criminal Criminal barristers usually work as part of a chambers, but some are self-employed. Legal directories such as the Legal 500 list particularly noteworthy barristers, like Michael Wolkind QC: http://www.legal500.com/firms/9410/offices/9410/lawyers/45489

Anyone can become a criminal barrister. The career is open to people who have a degree in any subject, but someone without a law degree would have to do a law conversion course before they started their professional training.